
#ifndef matrixkey_h
#define matrixkey_h

#include "head.h"

/*
sbit row1=P1^7;
sbit row2=P1^6;
sbit row3=P1^5;
sbit row4=P1^4;	
*/

#define COLUMN_ROW P1
u8 key_scan(void);
u8 key_matrix_ranks_scan(void);


#endif